/Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/PBDStiffness.h
Stiffness class for managing real time update to the weight map and low/high value ranges and to exponentiate the stiffness value depending on the iterations and Dt.
class FPBDStiffness : public [Chaos::Softs::FPBDWeightMap](API\Runtime\Chaos\Chaos\FPBDWeightMap)